Fifty-three files of unbound material accumulated by Bradney during the preparation of A History of Monmouthshire and containing press and proof copies, transcripts and abstracts of, and extracts from, manuscripts, deeds and documents, holograph and autograph letters, pedigrees and genealogical notes, press cuttings, etc., generally arranged under parishes. Much of the material is in the autographs of friends and official copyists. This volume contains letters, 1909; manuscript and typescript extracts from the parish registers of Aberystruth, 1696-1779, Llantarnam, 1725-1726, Llanfrechfa, 1725-1777, Panteg, 1736-1756, Bedwellty, 1813, Llanvillo (Brecknockshire), 1710-1873, and Llangors (Brecknockshire), 1755-1907; 'cywyddau' of Monmouthshire interest by Hywel Dafydd, Meurig Dafydd and Sion Mawddwy, transcribed by T[homas] C[hristopher] Evans ('Cadrawd') and Lemuel [John Hopkin James], Ystrad Mynach; and a list of poems by Dafydd Benwyn, with their first lines, in the autograph of 'Cadrawd'.

Forty-seven volumes of 'notae' or abstracts and extracts, principally of Monmouthshire interest, compiled from original records in both public and private possession. With the exception of letters and some insets they are all in the autograph of Bradney. Among the many private collections of title-deeds and documents from which the majority of these notes have been taken, in addition to those of Bradney himself, are those in the possession or custody of Albert Addams-Williams, Llangibby Castle; Garnet Edwin Bevan, Grosmont; S. C. Bosanquet, Dingestow Court; Alfred Bowen, Usk; Burleigh Cecil, Oaklands Park, Weybridge (Surrey); Mrs Morgan Clifford, Llantilio Crossenny; William Cooke, Hereford; the Reverend Henry Charles Davies, St Hilary, Cowbridge (Glamorgan); J. H. Davies, Cwrtmawr (Cardiganshire); Arthur Davies-Berrington, Pantygoitre, Llanfair Kilgeddin; the Reverend Edward Napleton Dew, Welsh Newton and Llanrothall (Herefordshire); Mrs Earnshaw, Court St Lawrence, Llangoven; Miss Charlotte Mary Evans, Nantyderi, Goytrey; Richard Feetham, Penrhos; G. C. Francis, solicitor, Chepstow; Frederick Gardner, solicitor, Newport; Illtyd Gardner, solicitor, Abergavenny; Mrs Gazzard, The Goitre, Grosmont; Isaac George, Llanfihangel-iuxta-Usk; Walter Gustard, Newport; G. E. Halliday, Cardiff; surveyor to the archdeaconry of Llandaff; Dom. J. Cuthbert Hedley, Roman Catholic bishop of Newport; Reginald Herbert, Clytha; John Harvey Hooper, Tutnall, near Worcester; Sir Henry Mather Jackson, Bart, Llantilio Crossenny; Mrs Newton Jackson, Blackbrook, Skenfrith; Gwilym Cristor James, Merthyr (Glamorgan); the Reverend Lemuel James, Ystradmynach (Glamorgan); Alfred Jones, Osbaston; Edmund Jones, Fforest Legionis, Pont-neath-Vaughan (Glamorgan); William Lewis, Tyhir, Pontypridd (Glamorgan); Sir John Lloyd, Dinas (Brecknockshire); --- Nesbitt, solicitor, Abergavenny; Illtyd Nicholl, The Ham, Llantwit Major (Glamorgan); the Reverend Andrew Pope, Upper Bishop, Ross (Herefordshire); Simon B. Preece, Llangattock Lingoed; James Gilbert Price, Abergavenny; the Misses Prothero, Moynes Court, Mathern; John Allan Rolls, 1st baron Llangattock, The Hendre, Llangattock Vibon Avel; Glen Taylor, Neath (Glamorgan); John Tyler, Maesderwen, Pontypool; Mrs Vinter, Moor, Clifford (Herefordshire); D. T. Newton Wade, solicitor, Newport; J. Maitland Watkins, solicitor, Usk; Thomas Watkins, solicitor, Pontypool; T. P. Holmes Watkins, solicitor, Pontypool; Messrs Watts, Watts and Co., colliery proprietors, Cardiff (Glamorgan); William Welch, Monmouth; Mrs Florence White-Spunner, Llanvapley Court; William Henry Smith Whitney, Grosmont; Messrs Williams and Tweedy, solicitors, Monmouth; T. B. R. Wilson, registrar of the diocese of Monmouth; and others. Additional sources include the papers of Thomas Wakeman, The Graig, Llantilio Crossenny, largely in the custody of the Society of Antiquaries, and transcripts of public and other records by William Dean, Ealing, London; Francis Green, St Davids; John Hobson Matthews, Cardiff; and others. This volume contains deeds relating to properties in Langston, Llanfair Kilgeddin, Llanfihangel-iuxta-Usk, Llangattock-iuxta-Usk, Llangattock Vibon Avel, Llantilio Crossenny, Llanvapley and Llanvetherine, and in Rollstone (Herefordshire), 1618-1857; and extracts relating to the families of Somerset and of Leech of Monmouth from parish registers, wills, etc., 1526-1842.

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire, in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews (Monmouth), Francis Green (St Davids), John Davies (Aberystwyth) and others. This volume is one of two (with NLW MS 7570) containing material taken from the private register of the Reverend William Charles (1746-1819), rector of Llanddewi Rhydderch and curate of Llangattock-iuxta-Usk, and comprises transcripts and extracts from the parish registers of Llanddewi Rhydderch, 1777-1819; and 'other parishes', including Goytrey, Llantilio Pertholey, Mamhilad, etc., 1770-1835.

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews of Monmouth, Francis Green of St Davids, John Davies of Aberystwyth and others. This volume contains transcripts and extracts from the parish registers of Monmouth, 1598-1849; Llandogo, 1694-1728; Dixton, 1724-1753; Newland (Gloucestershire), 1564-1706; and St Briavels (Gloucestershire), 1683-1733; copies of monumental inscriptions from Monmouth, 1738-1903, Dixton, 1772-1888, and Newland (Gloucestershire), 1721-1735; and extracts from the borough and Poor Law records of Monmouth, 1585-1776.

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire, in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews (Monmouth), Francis Green (St Davids), John Davies (Aberystwyth) and others. This volume is one of two (with NLW MS 7571) containing material taken from the private register of the Reverend William Charles (1746-1819), rector of Llanddewi Rhydderch and curate of Llangattock-iuxta-Usk, and comprises transcripts and extracts from the parish registers of Llanellen, 1766-1810; Skenfrith, 1771-1772; Llanover, 1772-1778; Llangattock, 1772-1819; Llanddewi Rhydderch, 1780-1793; and Garway (Herefordshire), 1771-1772, with details of salary and surplice fees, 1770-1771.

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire, in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews (Monmouth), Francis Green (St Davids), John Davies (Aberystwyth) and others. This volume contains transcripts and extracts from the parish registers of Michel Troy, 1590/1-1717 and Cwmcarvan, 1662-1772.

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews of Monmouth, Francis Green of St Davids, John Davies of Aberystwyth and others. This volume contains transcripts and extracts from the parish registers of Llanfihangel Crucorney, 1696-1812; Bettws Newydd, 1696-1813; Bettws, 1725-1810; Llantilio Pertholey, 1725-1811; Llanwenarth, 1725-1812; Trostrey, 1802-1812; and Llanwrda (Camarthenshire), 1673-1763; with draft pedigrees.